Originally Posted by A39Coronet

Originally Posted by jcc

Not clear to me in the above example how we know the "Pop up" was from over pressure underneath vs a low pressure above the scoop sucking it up?


Because it occured at the CASS, which I believe was around 42 MPH. No chance, based on the shape of the car, there was enough negative pressure to break the scoop tie downs. A 5" WO67 scoop has a significantly more in^2 than even a pro stock hood. Sealing that scoop to the pan made no sense to me.


The "CASS" reference is unclear to me also, and so you stating there was not enough low pressure above the hood/scoop to suck it upwards, but there was enough high pressure air inside the scoop to lift the hood up, the latter which I find nearly unbelievable.

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.